If ab= 23 then find the values of the following expressions.(i) 4a + – InterviewSolution

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1.	If ab= 23 then find the values of the following expressions.(i) 4a + 3b3b (ii) 5a2 + 2b25a2 - 2b2 (iii) a3 + b3b3 (iv) 7b - 4a7b + 4a
Answer» If $\frac{a}{b} = \frac{2}{3}$ then find the values of the following expressions. (i) $\frac{4 a + 3 b}{3 b}$ (ii) $\frac{5 a^{2} + 2 b^{2}}{5 a^{2} - 2 b^{2}}$ (iii) $\frac{a^{3} + b^{3}}{b^{3}}$ (iv) $\frac{7 b - 4 a}{7 b + 4 a}$

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